On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Fisheries

Balancing the sustainability of our fisheries stocks and the impacts of fishing on the environment with the economic opportunities

  • The Fishes of New Zealand

    Media release
    Te Papa has released a publication containing information, including pictures, distribution maps for all 1,262 known fish species found in our waters.
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    NIWA counting fish in Marlborough Sounds

    Media release
    Recreational fishers in the Marlborough Sounds, Tasman and Golden Bays are being approached at boat ramps in the region in the hope they will provide information on their catches for a research survey.
  • 2012 - Orange roughy in situ

    Moored underwater cameras have exposed the secret lives of orange roughy nearly 900 metres below the ocean surface.
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    Estimated discards

    View data that show reported target catch and estimated discards.
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    Devilrays – divers of the deep

    News article
    A successful electronic tagging project means scientists have made some important discoveries about spinetail devilrays.
  • NIWA makes a date with freshwater fish

    Media release
    NIWA researchers have produced a series of calendars to inform people when New Zealand's native freshwater and sport fish are migrating and spawning.
  • Freshwater fish calendars

    NIWA's publication "Freshwater Fish Spawning and Migration Periods" is designed to help people working near freshwater to minimise effects of their work on freshwater fish species.
  • NIWA calls on citizen scientists for grey mullet survey

    News article
    New Zealand’s leading freshwater and estuarine research body is harnessing the national curiosity about ecology to find out more about grey mullet.
  • Taking the pulse of Antarctica’s ocean ecosystem

    Niwa scientists have anchored an echosounder to the sea floor of Terra Nova Bay that could reveal the mystery of silverfish reproduction under the Antarctic ice.
  • Taking the pulse of Antarctica’s ocean ecosystem

    Media release
    NIWA scientists have anchored an echosounder to the sea floor of Terra Nova Bay that could reveal the mystery of silverfish reproduction under the Antarctic ice.
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    Voyage leader's final update

    Blog
    Now back on dry land, Voyage Leader Richard O'Driscoll reflects on the final days of RV Tangaroa's 2015 Antarctica expedition.
  • Oysters ahead: Bluff season begins

    Media release
    Each March, oyster lovers descend on the catch of Bluff’s best bivalves – a seasonal delicacy from one of the last remaining wild oyster fisheries on the planet.